Models: OH-5148 (stylet) / OH-5161 (light aluminum stick)
These two tools serve complementary educational functions.
The OH-5148, short and precise, is used for fine reflex points: hands, face, small joints.
The OH-5161, longer and lighter, is designed for broader zones: legs, back, shoulders.
Teaching combines both to develop awareness of scale and pressure.
Students learn to adapt force, speed, and angle depending on the area.
This alternation teaches the law of tactile contrast: precision vs amplitude, micro-contact vs global movement.
Students experience transitions between these sensations to refine coordination.
Under Law 31, this approach belongs to sensory and mechanical pedagogy, not therapy.